SIL is a measurement of the effectiveness of a safety system.A third-party organization evaluates a safety instrumented function (SIF) and its hardware, considering such factors as redundant architectures, proof test intervals, proof test effectiveness, any automatic diagnostics, average repair time, and specific failure rates of all products and subsystems included in the SIF.

“SIL 3 certification gives Flowserve customers added peace of mind in the safety and reliability of the MaxFlo 3 Valve and NR Diaphragm Actuator,” said Eric Anthony, Director of Marketing, Control Valve Products, Flowserve Flow Control Division.“We design valves and actuators with performance, reliability and safety in mind, and this certification validates our focus on quality.”

Flowserve partnered with exida Certification S.A., one of the world’s leading knowledge companies specializing in automation system safety and availability, to conduct the SIL certification process. The exida certification process involved an on-site audit and the development of a detailed safety case.